Johjt masters



(No Model.)

J. MASTERS. y SCRATCH BRUSH FOR THE USE OF JEWELERS AND OTHERS. No. 339,733. Patented 345.13.22, 1337.

ivrrnn @rares arent* Ormes.

JOHN MASTERS, OF LONDON, COUNTY OF MIDDLESEX, ENGLAND.

SPECIFICATION forming part ef Letters Application filed August 27, 1885. Serial No. 175,524.

Patent No. 359,733, dated Meulen 22, les?.

(No model.) Patented in England May 35, 198.3, No. 6,503.

To @ZZ whom it may con-cern:

Be it known that I, J OHN Masrutas, of 175 Goswell Road, London, in the county of Middlesex, England, brushmanufactured have invented a new and useful Improvement in Scratch-Brushes for the Use of Jewelers and others, oi' which the following is a fullf clear, and exact description.

My invention relates to improvements in the manufacture of what are known as scratchbrushes, used by silversmiths, electroplaters, and gilders for preparing metal articles for electroplating; and the invention has particular reference to brushes ot` round or cylindrical forni used for inside and outside work. Heretofore such brushes have been usually made by drawing the knots of Wire into holes in a circular wooden stock, in consequence oi' which construction the `wires forming the brush are almost devoid ot' elasticity, and, owing to the relatively considerable space occupied by the stock, it is impossible to make the brushes of less than a certain size.

New, my invention has for its object such a method ot' constructing` the brush that the wires forming the brush will have considerable elasticity, so as to yield to the inequalities ot' the work, will be securely fixed, and form a regular and even surface, owing` tothe stock or foundation being' reduced to the smallest possible dimensions. The cost of manufacture is also considerably less than that of brushes as heretofore made, and they are more economical, as the Wire can be `Worn down to the very center' of the brush. rIhese brushes can be made of sufficiently small diameter to be applied to the inside ot the smallest arti cles, such as the moutlrpcecs of musical instruments and other small apertures. The brushes can also be used for outside work.

The Wire I employ for the brush part is the crimped or corrugated wire forming the subject oi an application for British Letters Patent No. 5,752 of 1885.

In the accompanying` drawings, Figure 1 is a plan view of a brush made according to my invention; and Fi g. 2 is a View, on an enlarged scale, of one of the corrugated wires used in carrying out my invention.

a is a ne wire, (preferably brass,) which is crimped and corrugated, as shown iu Fig. 2. This wire may be attached to the shaft or holder I) in any welllknown manner. The brush thus joined may be provided with any suitable handle.

The advantage ofthe crimped or corrugated Wire is that the brush is fuller than astraightwire brush containing the same quantity of Wire bristles, and that crimped-wire bristles mutually support one another, and thus render the brush more elastic.

I do not claim brushes made of uucriniped or straight Wire; but,

Havingr now iully described my invention, what I do claim is A brush made of corrugated or crimped wire, substantially as herein shown and described.

The above specification of my invention signed by me this lst day ot' August, 138.3.

JOHN MASTERS.

litnesscs:

Tiioims LA nn,

T. J. Osamu, Y Both of' 1T 'Grccccliurci SZ., London, E. U. 

